Hangzhou Making Industry Co., Ltd
Hangzhou Making Industry
Buying Guide

Narrow Width Slitting What to Check Before You Order

Slitting from 5 mm removes a lot of scrap, but only if the order carries the right information. These are the fields that decide whether the coil runs on arrival.

Narrow slit steel strip mults being measured with a width gauge

Order the Developed Width Not a Round Number

The most common avoidable cost is ordering strip at a convenient round width and trimming it in house. Work out the developed width of the section or the strip the die actually needs, and order that. We slit from 5 mm, so there is rarely a reason to round up.

Relevant materialS260GD to S550GD Structural Galvanized Steel Strip — Structural galvanized strip, zinc 30 to 350 g/m2, 0.40 to 1.0 mm, slit 5 to 1500 mm.

State the Width Tolerance You Can Live With

A narrow mult that drifts in width changes the feed position in a progressive die. If your process is sensitive to it, say so on the enquiry rather than discovering it on the line.

Specify the Coil Format

Inner diameter, maximum coil weight and winding direction all have to match your decoiler. A coil that does not fit gets rewound on site, which costs time and marks the strip. These are three short fields that prevent a real problem.

Say Which Edge Condition You Need

A slit edge carries a burr on one side. For most formed parts it is irrelevant. For parts that are handled, that seal, or that run in a high speed die, it is not. Tell us which case you are in.

Relevant material300 Series Precision Stainless Steel Strip — Austenitic stainless strip including 304 and 316 families, 0.05 to 1.0 mm, slit 5 to 1250 mm.

Check the Width Limits by Family

Stainless strip slits from 5 mm to 1250 mm. Cold rolled carbon, galvanized and aluminum all run from 5 mm to 1500 mm. If a section needs more than 1250 mm in stainless, that is a design constraint worth knowing early.


Follow Up Questions

Is there a minimum quantity for narrow slitting?
It depends on the grade, the gauge and the mill, so it is confirmed with the quotation rather than published as a single figure. Send the specification and we will come back with what is realistic.
Can you slit very thin material narrow?
Yes. The 5 mm minimum width applies right down to 0.05 mm on the stainless and DC families.

Apply This to Your Own Part

A guide can only go so far. Send the part and we will tell you which way the decision goes in your specific case.